Piano keyboard overlay



FIG. 1 is a top perspective view of a piano keyboard overlay, showing mynew design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof.

The broken lines in the drawings illustrate portions of the pianokeyboard overlay that form no part of the claimed design.

CLAIM The ornamental design for a piano keyboard overlay, as shown anddescribed.